Friends of George Zimmerman, the neighborhood watch volunteer who shot and killed an unarmed teen in Florida last month, have come forward to say the 28-year-old acted in self-defense and is not a racist.

Joe Oliver, who said he has known Zimmerman for a decade, said his friend “couldn’t stop crying” for days after he fatally shot 17-year-old Trayvon Martin, on Feb. 26.

PeninsulaHospital’s doctors-in-training are staging a mutiny as the troubled hospital’s vital signs continue to look grim following a state-mandated shutdown of its lab, the Daily News has learned.

A coalition of furious medical residents are pushing their governing body, the American Osteopathic Association, to revoke Peninsula’s credentials as a teaching facility before the court-appointed overseer gives them all the axe, sources said Tuesday.